Another nice new plugin, Wavatars (by Shamus Young) shows a Gravatar-style face next to your name when you leave a comment. Of course, if you've set up a proper Gravatar, that will be displayed by default.
Wavatars can generate 956,384 different shapes in 57,600 different color combinations for a total of 55,087,718,400 (55 billion) unique Wavatars. Here are a few examples:
See them in action here.
Sorry but you don't get to choose, that's all sorted by the plugin.
Because you've all been behaving nicely, I've decided to cut you some slack and let you edit your own comments. The recently-installed plugin allows you to make edits during the first five minutes after submitting your comment, you should see a timer telling you how much time you have left to make your edit.
Abuse of this facility will lead to it being confisticated and put on a high shelf, visible but just out of reach, and I'll probably dock your pocket-money as well. 
